>
> James Harper <[email protected]>
> writes:
>
> > What is the recommended way of setting values in /sys these days?
> > Specifically, scheduler and read_ahead_kb for specific disks. I can
> > write a few udev rules if required but it seems a bit clumsy...
>
> I used sysfsutils, which has a /sys equivalent of /etc/sysctl.conf.
>
Hmmm... I can say something like:
devices/pci0000:00/0000:00:11.0/ata3/host2/target2:0:0/2:0:0:0/block/sdc/queue/scheduler
= deadline
but then that breaks if I attach a USB disk and the disk is no longer sdc,
although at least it would fail rather than give the setting to the wrong disk
like block/sdc would. I tried putting a * in place of the sdc but that didn't
work either.
I'll have a play with the init.d script where the magic happens... might be a
way to do lookups from dev so that something like:
block/{/dev/disk/by-id/scsi-SATA_ST2000NM0011_Z1P04TWS}/queue/scheduler =
deadline
could work...
James
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